Depends on how many axles the trailer has. Check state laws, but it comes down to how much weight is on each axle, which also reflects the GVWR. You might be able to do it, but chances are, the truck just isn't going to have enough power to pull a 312. You need at least 350 HP, in my opinion, to get anywhere. Around here, if you have less than 400 HP, you don't get anywhere at all.

Are you looking at a single axle truck tractor and using a single drop tandem axle trailer or a small lowbed ?

You have to keep in mind your gvw rules in the states pretty much allow you on a tandem axle trailer with a single axle tractor would be max 66,000lbs.

The big problem with a single axle tractor is not burning out the brakes if the truck has a 300hp L-10 or M-11 Cummins with a JAKE brake not a exhaust brake the truck will do it. If the truck is a single axle dump truck and your pulling a tag trailer no way the truck would be too dangerous.

You don't really need 400hp in a single axle but you should have a single axle with a 10 litre engine and a 9spd in it. A single axle with a 466 and 6spd isn't going to do it engine is too small and you don't have a JAKE. You need the jake brake to help in the braking.

I do not have a particaluar truck in mind, i was just wondering if that type of truck would pull the machine. I'm not set on international or anything.

I got to buy a 36 ft gooseneck to move fiberglass pools. I could pull the trailer with my 3/4 ton cummins, with a pool on it, but i would not be able to pull any machine on it. So i figure if i buy a little better trailer and pick up a used tractor for 10-20 grand, i'd be able to move a 12 ton excavator, or a mini x and my skid steer.

I'm proably going to have to buy a decent size ex in the next year or less, so i want to make the most out of my dollors.

I though about buying a tandem but what would suck for moving the pools. Also the tandem would sit alot, and it would cost me ALOT more to get a decent truck.

I been running the #s and for what its going to cost me to hire a excavator to dig and haul away all the dirt for each pool, i am better off buying a machine as soon as i can afford one. I might not need a 12 ton, but i need one large enough to use to pick up the pool and set it, so save on crane fees. I basically need a machine large enough to dig the biggest pool (about 110 yards of dirt) in a day and be able to pick up and set the pool.

Whats the best way of getting rid of clean dirt? I'm thinking about calling every excavtor in town the day before i start a dig and telling them i will be digging x amount of yard out between this time send a truck if you want free dirt.